Electric pump with time setting and enhanced oil-pipe transfer capability

ABSTRACT

An electric pump with time setting and enhanced oil-pipe transfer capability, which comprising at least: an electric pump, a timer and an electromagnetic valve; the electric pump is used to supply lubricating oil for the engine operation, and a motor is equipped to provide boosting pressure and strong transfer power, thus preventing reduction of suction and oil feed of oil pipeline for the intake manifold of engine during urgent acceleration; the timer is electrically connected with the engine&#39;s starting switch and motor, helping to activate the energized engine after startup, and enable the startup and shut-off of timing control oil feed within a fixed time; the electromagnetic valve is electrically connected with the timer and also controlled by it for the opening and closing, so as to realize correct and accurate oil feed and braking.

BACKGROUND OF INVENTION

1. Field of the Invention

The present invention relates generally to an improved engine oil feedsystem, and more particularly to an electric pump which is designed withtime setting and enhanced oil-pipe transfer capability for improving theengine lubricating efficiency and operating performance.

2. Description of Related Art

Most of conventional engines have shortcomings such as insufficient orinaccurate oil feed, particularly for gas fuel engines, which affectsthe normal clearance between the cam of exhaust camshaft and top ofvalve link, leading to improper depression, wear and sealing,vulnerability to high-temperature in the combustion chamber of theengine and incomplete fuel combustion as well as poorer lubricatingeffect and operating performance; the biggest disadvantage ofconventional engine oil feed system lies in its inability to controlaccurately the required oil feed, resulting in lower performance ofengine. In particular, more engine oil is required to maintainsatisfactory lubricating effect and improve the engine performanceduring its startup and urgent acceleration. However, the suction in theoil pipe of conventional engine will weaken and reduce the oil feed,thus cutting down greatly the lubricating effect.

In view of the imperfect structural design of conventional engine oilfeed device, the inventor has made continuous efforts to makeimprovements, and finally developed an “electric pump with time settingand enhanced oil-pipe transfer capability” for the benefit of thegeneral public.

Thus, to overcome said problems of the prior art, it would be anadvancement if the art to provide an improved structure that cansignificantly improve the efficacy.

Therefore, the inventor has provided the present invention ofpracticability after deliberate design and evaluation based on years ofexperience in the production, development and design of relatedproducts.

CONTENT OF INVENTION

The primary objective of the present invention is to provide an electricpump with time setting and enhanced oil-pipe transfer capability, thusimproving the engine's lubricating effect and operating performance.

Another objective of the present invention is to provide an electricpump with time setting and enhanced oil-pipe transfer capability, whichis equipped with a piston-type inching power supply unit to realizereal-time oil supply during initial startup and urgent acceleration ofengine, helping to achieve perfect lubricating effect.

For said purposes, the major technical means hereto include: an electricpump, a timer and an electromagnetic valve; the electric pump is usedfor feeding oil to operational engine, and equipped with a motor toprovide boosting pressure and strong transfer power, thus preventingreduction of suction and oil feed of oil pipeline for the intakemanifold of engine during urgent acceleration; the timer is electricallyconnected with the engine's starting switch and said motor, helping toactivate the energized engine after startup, and enable the startup andshut-off of timing control oil feed within a fixed time; theelectromagnetic valve is electrically connected with the timer, and alsocontrolled by the timer for its opening and closing so as to realizecorrect and accurate oil feed and braking.

Said electric pump can be equipped with a piston-type inching powersupply unit, which allows for temporary independent operation of theself-pressurized motor and electromagnetic valve, thus realizingreal-time self-pressurized oil feed to meet the demand during initialengine startup and urgent acceleration.

The features and the advantages of the present invention will be morereadily understood upon a thoughtful deliberation of the followingdetailed description of a preferred embodiment of the present inventionwith reference to the accompanying drawings.

SUMMARY OF THE INVENTION

Referring to FIG. 1, the electric pump 1 of the present invention foroil feed is equipped with a motor 10, a timer 2 and an electromagneticvalve 3.

The electric pump 1 comprises a pump and a motor, of which the pumpconsists of a cover 11 and a tank 12; this pump has almost the samestructure with the conventional lubricating tank, for instance, thecover 11 is fitted with an inlet valve 111, a pressure valve 112, an oildripping window 113, a regulating valve 114, fixed bolt 115, an outletvalve 116 and a current equalizer 117; lubricating oil is stored in thetank 12, wherein oil pipe is connected with the regulating valve 114 tofeed the lubricating oil and output it through the oil manifold of thecurrent equalizer 117.

The electric pump 1 of the present invention is structurallycharacterized by that: the oil feed mode is changed intoself-pressurized output by motor 10 from originally absorbing oilthrough the oil pipe 121 in the tank 12 into the regulating valve 114,and a timer 2 is set and electrically connected to control accuratelythe opening and closing of the electromagnetic valve 3 at outlet valve116, realizing accurate constant oil output.

In practice, an oil outlet 121 is set properly at the bottom of the tank12 and connected with a vane-type motor 10, whose output is linked tothe oil pipe 121; the other end of the oil pipe 121 is connected back tothe regulating valve 114; with the dynamic pressurization of the motor10, it is possible to provide stronger oil transfer power, and preventreduction of suction and oil feed of oil pipeline for the intakemanifold of engine during urgent acceleration.

In terms of the source of electric power, the electric pump 1 isoperated synchronously with the starting switch of the engine, namely,the electric pump 1 is operated after startup of the vehicle, otherwisestopped after turn-off; in practice, both the motor 10 and theelectromagnetic valve 3 are electrically connected with the timer 2 forsynchronous operation; then the timer 2 is electrically connected withthe starting switch of the engine; also, the timer 2 is preset forstartup/shut-off of the motor 10 and the electromagnetic valve 3, andthe timer 2 is triggered simultaneously after the starting switch isturned on; with the setting of the timer 2, it is possible to provideaccurate constant oil output in fixed time.

Referring also to FIG. 3—an assembly view of another preferredembodiment of the electric pump of the present invention, whereindiaphragm type motor 10 is used for pressurized output of lubricatingoil. The only difference is that the lubricating oil can be supplied byoriginal electric pump 1 or the lubricating oil tank; with thiscomposition, the lubricating oil is absorbed through up-and-downreciprocating movement of the diaphragm type motor 10, and then outputvia an oil pipe 121 to the regulating valve 114, and the timer 2 is usedto control the opening of the electromagnetic valve 3 for transientejection to provide stronger oil transfer power.

Referring to FIG. 4—an assembly view of another preferred embodiment ofthe present invention, wherein a piston-type inching power supply unit 4is additionally set; in practice, it is temporarily fixed within thehousing of air cleaner assembly. The piston-type inching power supplyunit 4 at least contains: a frame 40, a piston cylinder 41, an inchingswitch 42 and a relay 43; of which the C-shaped frame 40 is used forfixation of the piston cylinder 41, which is locked securely with alocker 401; one end of the piston cylinder 41 is linked to the engine'sintake manifold, and the other end is fitted with a vertically liftingtop plug 411 aligned with the inching switch 42, and a spring 412 is setto support the top plug 411; the normally closed inching switch 42 isconnected with the negative electrode of the starting switch, andactivated to provide a negative current to the electromagnetic valve 3and motor 10 of the electric pump 1; meanwhile, a positive current issupplied separately to the electromagnetic valve 3 and motor 10 of theelectric pump 1 from the vehicle electric door; the relay 43 isseparately linked to the output negative electrode of the inching switch42 and positive electrode of the engine's starting switch; after theengine is started, the electric pump 1 permits constant oil feedaccording to the preset time of the timer 2; when the engine isaccelerated, air enters quickly into the piston cylinder 41 to push thetop plug 411 for displacement and contact with the inching switch 42,thus providing quickly a negative current to the electromagnetic valve 3and motor 10 via the relay 43; since the electromagnetic valve 3 and themotor 10 are supplied with a positive current after startup of engine,pressurized oil supply will start immediately after negative current isinput, without need of the control of the timer 2 temporarily to meetthe oil supply required during urgent acceleration of the engine.Besides, the power supply of the motor 10 can be turned into a normallyopen state under the direct control of the engine's starting switch;after the electromagnetic valve 3 is opened, the required amount oflubricating oil will be ejected immediately. Of course, both of theelectric pumps 1 with different motors 10 can be additionally equippedwith a piston-type inching power supply unit, allowing to realizereal-time oil supply and excellent lubricating effect during initialstartup and urgent accelerant of the engine, as shown in FIG. 5.

Additionally, the frame 40 and the piston cylinder 41 of the piston-typeinching power supply unit 4 are combined in a way that the verticalshift can be adjusted, where necessary, so as to shorten or prolong thespacing between the top plug 411 and inching switch 42, and adjust theresponse time of the piston-type inching power supply unit 4; certainly,the spring 412 within the piston cylinder 41 can be replaced foradjusting the response time.

Therefore, with the elaborate design of the inventor, the electric pumpof the present invention is equipped with a timer for constant oil feedcontrol to prevent unsmooth operation of engine due to excessive orinsufficient oil feed; meanwhile, in combination with the pressurizationof motor and opening/closing control of the electromagnetic valve, thelubricating oil will be transferred to the engine more powerfully forrealizing real-time and perfect lubricating effect; additionally, giventhe fact that more lubricating oil is required to maintain the engineperformance during its startup and urgent acceleration, a piston-typeinching power supply unit is provided, enabling to start directly themotor and electromagnetic valve independently of the timer for themoment, and supply instantly real-time pressurized oil to the engine foran improved lubricating effect, thereby avoiding efficiently thedegraded effect due to insufficient oil supply during engine operation.

Although the invention has been explained in relation to its preferredembodiment, it is to be understood that many other possiblemodifications and variations can be made without departing from thespirit and scope of the invention as hereinafter claimed.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 shows an external view of the preferred embodiment of theelectric pump of the present invention.

FIG. 2 shows an assembly view of the preferred embodiment of theelectric pump of the present invention.

FIG. 3 shows an assembly view of another preferred embodiment of theelectric pump of the present invention.

FIG. 4 shows an assembly view of the present invention concerninganother preferred embodiment of the electric pump and piston-typeinching power supply unit.

FIG. 5 shows an assembly view of the present invention concerninganother preferred embodiment of the electric pump and piston-typeinching power supply unit.

1. An electric pump with time setting and enhanced oil-pipe transfercapability, comprising: an electric pump, further comprising a cover anda tank; and the cover is fitted with an inlet valve, a pressure valve,an oil dripping window, a regulating valve, a fixed bolt, an outletvalve and a current equalizer; a motor connected to the electric pumpvia an oil pipe, with its output linked to the regulating valve throughthe oil pipe; an electromagnetic valve fixed securely at the outletvalve on the cover of the electric pump; and a timer electricallyconnected to control the opening and closing of the drive motor andelectromagnetic valve.
 2. The electric pump with time setting andenhanced oil-pipe transfer capability as claimed in claim 1, wherein themotor is of vane-type or diaphragm type.
 3. The electric pump with timesetting and enhanced oil-pipe transfer capability as claimed in claim 1,wherein the power source of the timer is supplied by the starting switchof the engine.
 4. The electric pump with time setting and enhancedoil-pipe transfer capability as claimed in claim 1, wherein apiston-type inching power supply unit also includes: a frame, a pistoncylinder, an inching switch and a relay.
 5. The electric pump with timesetting and enhanced oil-pipe transfer capability as claimed in claim 4,wherein the C-shaped frame is combined securely with the piston cylinderby a locker, allowing to adjust vertically the position of the pistoncylinder.
 6. The electric pump with time setting and enhanced oil-pipetransfer capability as claimed in claim 4, wherein the power source ofthe motor is supplied by the starting switch of the engine.